code: def time_broadcast(self, number_of_engines, *args):
      self.reply = self.view.apply_sync(
          echo,
          np.array([0] * 1000, dtype=np.int8),
      )
  
imports: import os
  import time
  import timeit
  import numpy
  import ipyparallel
label_desc: Use image node_id 2 for calling the DepthTestingSuite obj's underlying member method code with example usage: obj.time_broadcast(number_of_engines) without return types